Base de dados : MEDLINE
Pesquisa : J01.256.078 [Categoria DeCS]
Referências encontradas : 2723 [refinar]
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[PMID]:27773548
[Au] Autor:Hadidi LA; Omer MM
[Ad] Endereço:Construction Engineering and Management Department, King Fahd University of Petroleum and Minerals, Saudi Arabia. Electronic address: lhadidi@kfupm.edu.sa.
[Ti] Título:A financial feasibility model of gasification and anaerobic digestion waste-to-energy (WTE) plants in Saudi Arabia.
[So] Source:Waste Manag;59:90-101, 2017 Jan.
[Is] ISSN:1879-2456
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Municipal Solid Waste (MSW) generation in Saudi Arabia is increasingly growing at a fast rate, as it hurtles towards ever increasing urban development coupled with rapid developments and expanding population. Saudi Arabia's energy demands are also rising at a faster rate. Therefore, the importance of an integrated waste management system in Saudi Arabia is increasingly rising and introducing Waste to Energy (WTE) facilities is becoming an absolute necessity. This paper analyzes the current situation of MSW management in Saudi Arabia and proposes a financial model to assess the viability of WTE investments in Saudi Arabia in order to address its waste management challenges and meet its forecasted energy demands. The research develops a financial model to investigate the financial viability of WTE plants utilizing gasification and Anaerobic Digestion (AD) conversion technologies. The financial model provides a cost estimate of establishing both gasification and anaerobic digestion WTE plants in Saudi Arabia through a set of financial indicators, i.e. net present value (NPV), internal rate of return (IRR), modified internal rate of return (MIRR), profitability index (PI), payback period, discounted payback period, Levelized Cost of Electricity (LCOE) and Levelized Cost of Waste (LCOW). Finally, the analysis of the financial model reveals the main affecting factors of the gasification plants investment decision, namely: facility generation capacity, generated electricity revenue, and the capacity factor. Similarly, the paper also identifies facility waste capacity and the capacity factor as the main affecting factors on the AD plants' investment decision.
[Mh] Termos MeSH primário: Conservação de Recursos Energéticos
Eliminação de Resíduos/economia
Resíduos Sólidos/análise
Gerenciamento de Resíduos/economia
[Mh] Termos MeSH secundário: Cidades
Eletricidade
Gases/análise
Modelos Estatísticos
Modelos Teóricos
Arábia Saudita
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Gases); 0 (Solid Waste)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:180207
[Lr] Data última revisão:
180207
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE


  2 / 2723 MEDLINE  
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[PMID]:29281646
[Au] Autor:Dikhanbaev B; Gomes C; Dikhanbaev AB
[Ad] Endereço:Department of Heat and Power Energy, Kazakh AgroTechnical University, Astana, Kazakhstan.
[Ti] Título:Energy-saving method for technogenic waste processing.
[So] Source:PLoS One;12(12):e0187790, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Dumps of a mining-metallurgical complex of post-Soviet Republics have accumulated a huge amount of technogenic waste products. Out of them, Kazakhstan alone has preserved about 20 billion tons. In the field of technogenic waste treatment, there is still no technical solution that leads it to be a profitable process. Recent global trends prompted scientists to focus on developing energy-saving and a highly efficient melting unit that can significantly reduce specific fuel consumption. This paper reports, the development of a new technological method-smelt layer of inversion phase. The introducing method is characterized by a combination of ideal stirring and ideal displacement regimes. Using the method of affine modelling, recalculation of pilot plant's test results on industrial sample has been obtained. Experiments show that in comparison with bubbling and boiling layers of smelt, the degree of zinc recovery increases in the layer of inversion phase. That indicates the reduction of the possibility of new formation of zinc silicates and ferrites from recombined molecules of ZnO, SiO2, and Fe2O3. Calculations show that in industrial samples of the pilot plant, the consumption of natural gas has reduced approximately by two times in comparison with fuming-furnace. The specific fuel consumption has reduced by approximately four times in comparison with Waelz-kiln.
[Mh] Termos MeSH primário: Conservação de Recursos Energéticos
Gerenciamento de Resíduos/métodos
[Mh] Termos MeSH secundário: Metais/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Metals)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180129
[Lr] Data última revisão:
180129
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171228
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0187790


  3 / 2723 MEDLINE  
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[PMID]:25816181
[Au] Autor:Burpee H; McDade E
[Ti] Título:Comparative analysis of hospital energy use: pacific northwest and scandinavia.
[So] Source:HERD;8(1):20-44, 2014.
[Is] ISSN:1937-5867
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: This study aimed to establish the potential for significant energy reduction in hospitals in the United States by providing evidence of Scandinavian operational precedents with high Interior Environmental Quality (IEQ) and substantially lower energy profiles than comparable U.S. facilities. These facilities set important precedents for design teams seeking operational examples for achieving aggressive energy and interior environmental quality goals. This examination of operational hospitals is intended to offer hospital owners, designers, and building managers a strong case and concrete framework for strategies to achieve exceptionally high performing buildings. BACKGROUND: Energy efficient hospitals have the potential to significantly impact the U.S.'s overall energy profile, and key stakeholders in the hospital industry need specific, operationally grounded precedents in order to successfully implement informed energy reduction strategies. This study is an outgrowth of previous research evaluating high quality, low energy hospitals that serve as examples for new high performance hospital design, construction, and operation. Through extensive interviews, numerous site visits, the development of case studies, and data collection, this team has established thorough qualitative and quantitative analyses of several contemporary hospitals in Scandinavia and the Pacific Northwest. Many Scandinavian hospitals demonstrate a low energy profile, and when analyzed in comparison with U.S. hospitals, such Scandinavian precedents help define the framework required to make significant changes in the U.S. hospital building industry. METHODS: Eight hospitals, four Scandinavian and four Pacific Northwest, were quantitatively compared using the Environmental Protection Agency's Portfolio Manager, allowing researchers to answer specific questions about the impact of energy source and architectural and mechanical strategies on energy efficiency in operational hospitals. RESULTS: Specific architectural, mechanical, and plant systems make these Scandinavian hospitals more energy efficient than their Pacific Northwest counterparts. More importantly, synergistic systems integration allows for their significant reductions in energy consumption. CONCLUSIONS: This quantitative comparison of operational Scandinavian and Pacific Northwest hospitals resulted in compelling evidence of the potential for deep energy savings in the U.S., and allowed researchers to outline specific strategies for achieving such reductions.
[Mh] Termos MeSH primário: Conservação de Recursos Energéticos/estatística & dados numéricos
Fontes de Energia Elétrica/estatística & dados numéricos
Ambiente de Instituições de Saúde/estatística & dados numéricos
Arquitetura Hospitalar/estatística & dados numéricos
[Mh] Termos MeSH secundário: Noroeste dos Estados Unidos
Países Escandinavos e Nórdicos
Estados Unidos
United States Environmental Protection Agency
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180123
[Lr] Data última revisão:
180123
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150328
[St] Status:MEDLINE
[do] DOI:10.1177/193758671400800104


  4 / 2723 MEDLINE  
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[PMID]:28456918
[Au] Autor:Tang E; Peng C
[Ad] Endereço:Institute of Auditing Science, Nanjing Audit University, No. 86 West Yushan Road, Pukou District, Nanjing, 211815, Jiangsu, People's Republic of China. tangerzi_nau@126.com.
[Ti] Título:The global contribution of energy consumption by product exports from China.
[So] Source:Environ Sci Pollut Res Int;24(17):14690-14699, 2017 Jun.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:This paper presents a model to analyze the mechanism of the global contribution of energy usage by product exports. The theoretical analysis is based on the perspective that contribution estimates should be in relatively smaller sectors in which the production characteristics could be considered, such as the productivity distribution for each sector. Then, we constructed a method to measure the global contribution of energy usage. The simple method to estimate the global contribution is the percentage of goods export volume compared to the GDP as a multiple of total energy consumption, but this method underestimates the global contribution because it ignores the structure of energy consumption and product export in China. According to our measurement method and based on the theoretical analysis, we calculated the global contribution of energy consumption only by industrial manufactured product exports in a smaller sector per industry or manufacturing sector. The results indicated that approximately 42% of the total energy usage in the whole economy for China in 2013 was contributed to foreign regions. Along with the primary products and service export in China, the global contribution of energy consumption for China in 2013 by export was larger than 42% of the total energy usage.
[Mh] Termos MeSH primário: Comércio
Fontes Geradoras de Energia
Indústrias
[Mh] Termos MeSH secundário: China
Conservação de Recursos Energéticos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171215
[Lr] Data última revisão:
171215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170501
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-017-9074-6


  5 / 2723 MEDLINE  
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[PMID]:28934271
[Au] Autor:Sabry AH; Hasan WZW; Ab Kadir M; Radzi MAM; Shafie S
[Ad] Endereço:Control and Automation, Faculty of Engineering, UPM, Serdang, Malaysia.
[Ti] Título:DC-based smart PV-powered home energy management system based on voltage matching and RF module.
[So] Source:PLoS One;12(9):e0185012, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The main tool for measuring system efficiency in homes and offices is the energy monitoring of the household appliances' consumption. With the help of GUI through a PC or smart phone, there are various applications that can be developed for energy saving. This work describes the design and prototype implementation of a wireless PV-powered home energy management system under a DC-distribution environment, which allows remote monitoring of appliances' energy consumptions and power rate quality. The system can be managed by a central computer, which obtains the energy data based on XBee RF modules that access the sensor measurements of system components. The proposed integrated prototype framework is characterized by low power consumption due to the lack of components and consists of three layers: XBee-based circuit for processing and communication architecture, solar charge controller, and solar-battery-load matching layers. Six precise analogue channels for data monitoring are considered to cover the energy measurements. Voltage, current and temperature analogue signals were accessed directly from the remote XBee node to be sent in real time with a sampling frequency of 11-123 Hz to capture the possible surge power. The performance shows that the developed prototype proves the DC voltage matching concept and is able to provide accurate and precise results.
[Mh] Termos MeSH primário: Conservação de Recursos Energéticos
Fontes de Energia Elétrica
Desenho de Equipamento
Ondas de Rádio
Processamento de Sinais Assistido por Computador/instrumentação
Tecnologia sem Fio/instrumentação
[Mh] Termos MeSH secundário: Eletrônica
Seres Humanos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171017
[Lr] Data última revisão:
171017
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170922
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185012


  6 / 2723 MEDLINE  
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[PMID]:28880299
[Au] Autor:Kemfert C
[Ad] Endereço:Department at the German Institute of Economic Research (DIW Berlin) and professor of energy economics and sustainability at the Hertie School of Governance in Berlin, Germany.
[Ti] Título:Germany must go back to its low-carbon future.
[So] Source:Nature;549(7670):26-27, 2017 09 06.
[Is] ISSN:1476-4687
[Cp] País de publicação:England
[La] Idioma:eng
[Mh] Termos MeSH primário: Dióxido de Carbono/análise
Conservação de Recursos Energéticos/legislação & jurisprudência
Conservação de Recursos Energéticos/tendências
Política Ambiental/legislação & jurisprudência
Política Ambiental/tendências
Metas
Energia Renovável/legislação & jurisprudência
[Mh] Termos MeSH secundário: Automóveis
Carvão Mineral/economia
Carvão Mineral/provisão & distribuição
Carvão Mineral/utilização
Conservação de Recursos Energéticos/economia
Política Ambiental/economia
Governo Federal
Alemanha
Efeito Estufa/prevenção & controle
Efeito Estufa/estatística & dados numéricos
Cooperação Internacional
Invenções/economia
Invenções/tendências
Liderança
Energia Renovável/economia
Pesquisa/economia
Pesquisa/tendências
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Coal); 142M471B3J (Carbon Dioxide)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171017
[Lr] Data última revisão:
171017
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170908
[St] Status:MEDLINE
[do] DOI:10.1038/549026a


  7 / 2723 MEDLINE  
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[PMID]:28817731
[Au] Autor:Espindola RL; Araújo AM
[Ad] Endereço:Rural Federal University of Semi-Arid-Campus Caraúbas, Caraúbas, Rio Grande do Norte, Brazil.
[Ti] Título:Wave energy resource of Brazil: An analysis from 35 years of ERA-Interim reanalysis data.
[So] Source:PLoS One;12(8):e0183501, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:This paper presents a characterization of the wave power resource and an analysis of the wave power output for three (AquaBuoy, Pelamis and Wave Dragon) different wave energy converters (WEC) over the Brazilian offshore. To do so it used a 35 years reanalysis database from the ERA-Interim project. Annual and seasonal statistical analyzes of significant height and energy period were performed, and the directional variability of the incident waves were evaluated. The wave power resource was characterized in terms of the statistical parameters of mean, maximum, 95th percentile and standard deviation, and in terms of the temporal variability coefficients COV, SV e MV. From these analyses, the total annual wave power resource available over the Brazilian offshore was estimated in 89.97 GW, with largest mean wave power of 20.63 kW/m in the southernmost part of the study area. The analysis of the three WEC was based in the annual wave energy output and in the capacity factor. The higher capacity factor was 21.85% for Pelamis device at the southern region of the study area.
[Mh] Termos MeSH primário: Conservação de Recursos Energéticos
Oceanos e Mares
Movimentos da Água
[Mh] Termos MeSH secundário: Brasil
Estações do Ano
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171013
[Lr] Data última revisão:
171013
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170818
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0183501


  8 / 2723 MEDLINE  
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[PMID]:28806649
[Au] Autor:Lundgren T; Zhou W
[Ad] Endereço:Centre for Environmental and Resource Economics, Umeå University, 901 87, Umeå, Sweden. Electronic address: tommy.lundgren@umu.se.
[Ti] Título:Firm performance and the role of environmental management.
[So] Source:J Environ Manage;203(Pt 1):330-341, 2017 Dec 01.
[Is] ISSN:1095-8630
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This paper analyzes the interactions between three dimensions of firm performance - productivity, energy efficiency, and environmental performance - and especially sheds light on the role of environmental management. In this context, environmental management is investments to reduce environmental impact, which may also affect firm competitiveness, in terms of change in productivity, and spur more (or less) efficient use of energy. We apply data envelopment analysis (DEA) technique to calculate the Malmquist firm performance indexes, and a panel vector auto-regression (VAR) methodology is utilized to investigate the dynamic and causal relationship between the three dimensions of firm performance and environmental investment. Main results show that energy efficiency and environmental performance are integrated, and energy efficiency and productivity positively reinforce each other, signifying the cost saving property of more efficient use of energy. Hence, increasing energy efficiency, as advocated in many of today's energy policies, could capture multiple benefits. The results also show that improved environmental performance and environmental investments constrain next period productivity, a result that would be in contrast with the Porter hypothesis and strategic corporate social responsibility; both concepts conveying the notion that pro-environmental management can boost productivity and competitiveness.
[Mh] Termos MeSH primário: Conservação de Recursos Energéticos
Meio Ambiente
[Mh] Termos MeSH secundário: Investimentos em Saúde
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171113
[Lr] Data última revisão:
171113
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170815
[St] Status:MEDLINE


  9 / 2723 MEDLINE  
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[PMID]:28672213
[Au] Autor:Ali B; Kumar A
[Ad] Endereço:Department of Mechanical Engineering, Donadeo Innovation Centre for Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada.
[Ti] Título:Life cycle water demand coefficients for crude oil production from five North American locations.
[So] Source:Water Res;123:290-300, 2017 Oct 15.
[Is] ISSN:1879-2448
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The production of liquid fuels from crude oil requires water. There has been limited focus on the assessment of life cycle water demand footprints for crude oil production and refining. The overall aim of this paper is address this gap. The objective of this research is to develop water demand coefficients over the life cycle of fuels produced from crude oil pathways. Five crude oil fields were selected in the three North American countries to reflect the impact of different spatial locations and technologies on water demand. These include the Alaska North Slope, California's Kern County heavy oil, and Mars in the U.S.; Maya in Mexico; and Bow River heavy oil in Alberta, Canada. A boundary for an assessment of the life cycle water footprint was set to cover the unit operations related to exploration, drilling, extraction, and refining. The recovery technology used to extract crude oil is one of the key determining factors for water demand. The amount of produced water that is re-injected to recover the oil is essential in determining the amount of fresh water that will be required. During the complete life cycle of one barrel of conventional crude oil, 1.71-8.25 barrels of fresh water are consumed and 2.4-9.51 barrels of fresh water are withdrawn. The lowest coefficients are for Bow River heavy oil and the highest coefficients are for Maya crude oil. Of all the unit operations, exploration and drilling require the least fresh water (less than 0.015 barrel of water per barrel of oil produced). A sensitivity analysis was conducted and uncertainty in the estimates was determined.
[Mh] Termos MeSH primário: Petróleo
[Mh] Termos MeSH secundário: Alberta
Animais
Conservação de Recursos Energéticos
México
Tecnologia
Estados Unidos
Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Petroleum); 059QF0KO0R (Water)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171013
[Lr] Data última revisão:
171013
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170704
[St] Status:MEDLINE


  10 / 2723 MEDLINE  
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[PMID]:28671967
[Au] Autor:Kong Z; Zou Y; Liu T
[Ad] Endereço:National Engineering Laboratory for Electric Vehicles, School of Mechanical Engineering, Institute of Technology, Beijing, China.
[Ti] Título:Implementation of real-time energy management strategy based on reinforcement learning for hybrid electric vehicles and simulation validation.
[So] Source:PLoS One;12(7):e0180491, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:To further improve the fuel economy of series hybrid electric tracked vehicles, a reinforcement learning (RL)-based real-time energy management strategy is developed in this paper. In order to utilize the statistical characteristics of online driving schedule effectively, a recursive algorithm for the transition probability matrix (TPM) of power-request is derived. The reinforcement learning (RL) is applied to calculate and update the control policy at regular time, adapting to the varying driving conditions. A facing-forward powertrain model is built in detail, including the engine-generator model, battery model and vehicle dynamical model. The robustness and adaptability of real-time energy management strategy are validated through the comparison with the stationary control strategy based on initial transition probability matrix (TPM) generated from a long naturalistic driving cycle in the simulation. Results indicate that proposed method has better fuel economy than stationary one and is more effective in real-time control.
[Mh] Termos MeSH primário: Conservação de Recursos Energéticos/métodos
Eletricidade
Aprendizado de Máquina
Modelos Teóricos
Veículos Automotores
[Mh] Termos MeSH secundário: Algoritmos
Probabilidade
Emissões de Veículos
[Pt] Tipo de publicação:JOURNAL ARTICLE; VALIDATION STUDIES
[Nm] Nome de substância:
0 (Vehicle Emissions)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171006
[Lr] Data última revisão:
171006
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170704
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0180491



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